Finding the Fourth Proportional to 105,190.98, 145,157.63 and 59,879.99
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Solution
The fourth proportional to 105,190.98, 145,157.63 and 59,879.99 is: 82,631.01
Step by Step Solution
- Step 1: Write the proportion equation
105,190.98 : 145,157.63 = 59,879.99 : x - Step 2: Convert to fraction form
105,190.98/145,157.63 = 59,879.99/x - Step 3: Cross multiply
105,190.98x = 145,157.63 × 59,879.99 - Step 4: Simplify right side
105,190.98x = 8,692,036,407.64 - Step 5: Solve for x
x = 8,692,036,407.64/105,190.98 - Step 6: Final answer
x = 82,631.01
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.